CN201000686Y - Demonstrator for simulating remote electric power transmission - Google Patents
Demonstrator for simulating remote electric power transmission Download PDFInfo
- Publication number
- CN201000686Y CN201000686Y CNU2007200185874U CN200720018587U CN201000686Y CN 201000686 Y CN201000686 Y CN 201000686Y CN U2007200185874 U CNU2007200185874 U CN U2007200185874U CN 200720018587 U CN200720018587 U CN 200720018587U CN 201000686 Y CN201000686 Y CN 201000686Y
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- bulb
- resistance
- transformer
- power transmission
- utility
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- Expired - Fee Related
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Abstract
The utility model discloses a demonstrator for simulating long range power transmission, which belongs to a teaching aid, in particular to an electricity demonstration teaching aid. The circuit structure of the utility model is that a low voltage AC power supply is connected with two poles binding post of a double pole double throw switch, one end of the switch is connected with a circuit which has a resistance A and a bulb A connecting in series, the other end of the switch is connected with a low voltage end of a step up transformer, a high voltage end of the step up transformer is connected with the high voltage end of the step down transformer through a resistance B, the low voltage of the step down transformer is connected with a bulb B, the resistance A and the resistance B are the same, and the bulb A and the bulb B are the same. The structure of the utility model is simple, the long range power transmission by adopting high voltage power transmission and low voltage current delivery is simulated clearly, the capacity of the line loss is reduced greatly and the efficiency of the current delivery is improved compares with adopting the low voltage power transmission. The utility model can be used in middle schools and technician training schools as an electricity teaching aid.
Description
Technical field
The utility model belongs to teaching aid, particularly the electricity demonstration teaching aid.
Background technology
In order to reduce the line loss in long-distance transmission, modern transmission line of electricity all adopts the ac high-voltage user side of transmitting electricity will force down force feed again, more abstract when carrying out the teaching of this knowledge, generally only adopt circuit to calculate this content of explaining illustration, the student is difficult for understanding still do not have to demonstrate the demonstration instrument of this principle.
The utility model content
The purpose of this utility model provides a kind of technical scheme that can demonstrate the simulation long-distance transmission demonstration device of long-distance transmission principle intuitively.
The technical solution of the utility model is, a kind of simulation long-distance transmission demonstration device, its circuit structure is: low-voltage alternating current power supply is connected on the two cutter binding posts of double-point double-throw switch, switch one end is connecting the circuit that a resistance A and bulb A are connected in series, the switch other end connects the low pressure end of step-up transformer, the step-up transformer high-pressure side is connected to the high-pressure side of step-down transformer by resistance B, the low pressure end of step-down transformer connects a bulb B, described resistance A is identical with resistance B, and bulb A is identical with bulb B.
Described low-voltage alternating current power supply is alternator or transformer.
The line loss resistance of circuit is sent in resistance A and resistance B representative in the utility model, the identical expression power supply distance of two resistance is identical, and is directly little with the power miniature bulb brightness that the big transmission power big bulb of low force feed electricity electric current obtains in the circuit representative of resistance A and bulb A series connection; Because the high voltage power transmission transmission current is little, transmission power is little, the brightness height of the power big bulb that bulb reaches in the circuit of transformer is housed.
The disclosed demonstration device of the utility model is simple in structure, adopts high voltage power transmission, low force feed electricity but clearly simulated long-distance transmission, compares the power that can significantly reduce line loss with direct employing low voltage power transmission, improves and send electrical efficiency.Be fit to middle school and skilled workers school's electricity teaching use.
Description of drawings
Accompanying drawing 1 is a circuit diagram of the present utility model,
Among the figure, 1. AC power, 2. double-point double-throw switch, 3. resistance A, 4. bulb A, 5. step-up transformer, 6. resistance B, 7. step-down transformer, 8. bulb B.
Embodiment
Embodiment of the present utility model is, as shown in the figure:
Embodiment 1, a kind of simulation long-distance transmission demonstration device, its circuit structure is: low-voltage alternating current power supply 1 is connected on the two cutter binding posts of double-point double-throw switch 2, switch one end is connecting the circuit that a resistance A 3 and bulb A 4 are connected in series, the switch other end connects the low pressure end of step-up transformer 5, and the step-up transformer high-pressure side is connected to the high-pressure side of step-down transformer 7 by resistance B6, and the low pressure end of step-down transformer connects a bulb B8, wherein resistance A is identical with resistance B, and bulb A is identical with bulb B.Use transformer to do low-tension supply.This demonstration device can be installed in each components and parts on the base plate according to above-mentioned circuit structure and connect each element, and promptly can be made into the tangible lines circuit diagram that draws.
Embodiment 2, a kind of simulation long-distance transmission demonstration device, its circuit structure is: the low-voltage alternating current power supply 1 that will test usefulness is connected on the two cutter binding posts of double-point double-throw switch 2, switch one end is connecting the circuit that a resistance A3 and bulb A4 are connected in series, the switch other end connects the low pressure end of step-up transformer 5, the step-up transformer high-pressure side is connected to the high-pressure side of step-down transformer 7 by resistance B6, the low pressure end of step-down transformer connects a bulb B8, wherein resistance A is identical with resistance B, and bulb A is identical with bulb B.This demonstration device can be installed in each components and parts on the base plate according to above-mentioned circuit structure and connect each element, and promptly can be made into the tangible lines circuit diagram that draws.
Claims (2)
1. simulate the long-distance transmission demonstration device for one kind, it is characterized in that: low-voltage alternating current power supply is connected on the two cutter binding posts of double-point double-throw switch, switch one end is connecting the circuit that a resistance A and bulb A are connected in series, the switch other end connects the low pressure end of step-up transformer, the step-up transformer high-pressure side is connected to the high-pressure side of step-down transformer by resistance B, the low pressure end of step-down transformer connects a bulb B, and described resistance A is identical with resistance B, and bulb A is identical with bulb B.
2. according to the determined simulation long-distance transmission of claim 1 demonstration device, it is characterized in that: described low-voltage alternating current power supply is alternator or transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200185874U CN201000686Y (en) | 2007-02-07 | 2007-02-07 | Demonstrator for simulating remote electric power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200185874U CN201000686Y (en) | 2007-02-07 | 2007-02-07 | Demonstrator for simulating remote electric power transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000686Y true CN201000686Y (en) | 2008-01-02 |
Family
ID=39015090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200185874U Expired - Fee Related CN201000686Y (en) | 2007-02-07 | 2007-02-07 | Demonstrator for simulating remote electric power transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000686Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656501B (en) * | 2008-08-20 | 2012-02-01 | 田永茂 | Motor starting circuit |
| CN104064082A (en) * | 2014-06-14 | 2014-09-24 | 罗春春 | Demonstrative experiment device for simulating remote power transmission |
| CN105825737A (en) * | 2016-05-31 | 2016-08-03 | 国网山东省电力公司龙口市供电公司 | Electrical power system automation simulation device |
-
2007
- 2007-02-07 CN CNU2007200185874U patent/CN201000686Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656501B (en) * | 2008-08-20 | 2012-02-01 | 田永茂 | Motor starting circuit |
| CN104064082A (en) * | 2014-06-14 | 2014-09-24 | 罗春春 | Demonstrative experiment device for simulating remote power transmission |
| CN105825737A (en) * | 2016-05-31 | 2016-08-03 | 国网山东省电力公司龙口市供电公司 | Electrical power system automation simulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 |